Philipp Hagemeister
11 years ago
4 changed files with 669 additions and 638 deletions
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-
654youtube_dl/postprocessor/__init__.py
-
49youtube_dl/postprocessor/common.py
-
481youtube_dl/postprocessor/ffmpeg.py
-
123youtube_dl/postprocessor/xattrpp.py
@ -1,640 +1,18 @@ |
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import os |
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import subprocess |
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import sys |
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import time |
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|
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|
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from ..utils import ( |
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compat_subprocess_get_DEVNULL, |
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encodeFilename, |
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hyphenate_date, |
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PostProcessingError, |
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prepend_extension, |
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shell_quote, |
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subtitles_filename, |
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from .ffmpeg import ( |
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FFmpegMergerPP, |
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FFmpegMetadataPP, |
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FFmpegVideoConvertor, |
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FFmpegExtractAudioPP, |
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FFmpegEmbedSubtitlePP, |
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) |
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|
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|
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class PostProcessor(object): |
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"""Post Processor class. |
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|
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PostProcessor objects can be added to downloaders with their |
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add_post_processor() method. When the downloader has finished a |
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successful download, it will take its internal chain of PostProcessors |
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and start calling the run() method on each one of them, first with |
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an initial argument and then with the returned value of the previous |
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PostProcessor. |
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|
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The chain will be stopped if one of them ever returns None or the end |
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of the chain is reached. |
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|
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PostProcessor objects follow a "mutual registration" process similar |
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to InfoExtractor objects. |
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""" |
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|
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_downloader = None |
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|
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def __init__(self, downloader=None): |
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self._downloader = downloader |
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|
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def set_downloader(self, downloader): |
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"""Sets the downloader for this PP.""" |
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self._downloader = downloader |
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|
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def run(self, information): |
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"""Run the PostProcessor. |
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|
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The "information" argument is a dictionary like the ones |
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composed by InfoExtractors. The only difference is that this |
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one has an extra field called "filepath" that points to the |
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downloaded file. |
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|
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This method returns a tuple, the first element of which describes |
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whether the original file should be kept (i.e. not deleted - None for |
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no preference), and the second of which is the updated information. |
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|
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In addition, this method may raise a PostProcessingError |
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exception if post processing fails. |
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""" |
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return None, information # by default, keep file and do nothing |
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|
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class FFmpegPostProcessorError(PostProcessingError): |
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pass |
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|
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class AudioConversionError(PostProcessingError): |
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pass |
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|
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|
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class FFmpegPostProcessor(PostProcessor): |
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def __init__(self,downloader=None): |
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PostProcessor.__init__(self, downloader) |
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self._exes = self.detect_executables() |
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|
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@staticmethod |
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def detect_executables(): |
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def executable(exe): |
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try: |
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subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() |
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except OSError: |
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return False |
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return exe |
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programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe'] |
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return dict((program, executable(program)) for program in programs) |
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|
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def run_ffmpeg_multiple_files(self, input_paths, out_path, opts): |
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if not self._exes['ffmpeg'] and not self._exes['avconv']: |
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raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.') |
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|
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files_cmd = [] |
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for path in input_paths: |
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files_cmd.extend(['-i', encodeFilename(path, True)]) |
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cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd |
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+ opts + |
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[encodeFilename(self._ffmpeg_filename_argument(out_path), True)]) |
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|
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if self._downloader.params.get('verbose', False): |
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self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd)) |
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
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stdout,stderr = p.communicate() |
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if p.returncode != 0: |
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stderr = stderr.decode('utf-8', 'replace') |
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msg = stderr.strip().split('\n')[-1] |
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raise FFmpegPostProcessorError(msg) |
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|
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def run_ffmpeg(self, path, out_path, opts): |
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self.run_ffmpeg_multiple_files([path], out_path, opts) |
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|
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def _ffmpeg_filename_argument(self, fn): |
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# ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details |
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if fn.startswith(u'-'): |
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return u'./' + fn |
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return fn |
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|
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|
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class FFmpegExtractAudioPP(FFmpegPostProcessor): |
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def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False): |
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FFmpegPostProcessor.__init__(self, downloader) |
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if preferredcodec is None: |
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preferredcodec = 'best' |
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self._preferredcodec = preferredcodec |
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self._preferredquality = preferredquality |
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self._nopostoverwrites = nopostoverwrites |
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|
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def get_audio_codec(self, path): |
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if not self._exes['ffprobe'] and not self._exes['avprobe']: |
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raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.') |
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try: |
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cmd = [ |
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self._exes['avprobe'] or self._exes['ffprobe'], |
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'-show_streams', |
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encodeFilename(self._ffmpeg_filename_argument(path), True)] |
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handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE) |
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output = handle.communicate()[0] |
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if handle.wait() != 0: |
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return None |
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except (IOError, OSError): |
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return None |
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audio_codec = None |
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for line in output.decode('ascii', 'ignore').split('\n'): |
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if line.startswith('codec_name='): |
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audio_codec = line.split('=')[1].strip() |
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elif line.strip() == 'codec_type=audio' and audio_codec is not None: |
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return audio_codec |
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return None |
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|
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def run_ffmpeg(self, path, out_path, codec, more_opts): |
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if not self._exes['ffmpeg'] and not self._exes['avconv']: |
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raise AudioConversionError('ffmpeg or avconv not found. Please install one.') |
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if codec is None: |
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acodec_opts = [] |
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else: |
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acodec_opts = ['-acodec', codec] |
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opts = ['-vn'] + acodec_opts + more_opts |
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try: |
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FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts) |
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except FFmpegPostProcessorError as err: |
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raise AudioConversionError(err.msg) |
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|
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def run(self, information): |
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path = information['filepath'] |
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|
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filecodec = self.get_audio_codec(path) |
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if filecodec is None: |
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raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe') |
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|
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more_opts = [] |
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if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'): |
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if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']: |
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# Lossless, but in another container |
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acodec = 'copy' |
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extension = 'm4a' |
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more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] |
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elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']: |
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# Lossless if possible |
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acodec = 'copy' |
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extension = filecodec |
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if filecodec == 'aac': |
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more_opts = ['-f', 'adts'] |
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if filecodec == 'vorbis': |
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extension = 'ogg' |
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else: |
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# MP3 otherwise. |
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acodec = 'libmp3lame' |
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extension = 'mp3' |
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more_opts = [] |
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if self._preferredquality is not None: |
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if int(self._preferredquality) < 10: |
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more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality] |
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else: |
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k'] |
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else: |
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# We convert the audio (lossy) |
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acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec] |
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extension = self._preferredcodec |
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more_opts = [] |
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if self._preferredquality is not None: |
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# The opus codec doesn't support the -aq option |
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if int(self._preferredquality) < 10 and extension != 'opus': |
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more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality] |
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else: |
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k'] |
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if self._preferredcodec == 'aac': |
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more_opts += ['-f', 'adts'] |
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if self._preferredcodec == 'm4a': |
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more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] |
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if self._preferredcodec == 'vorbis': |
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extension = 'ogg' |
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if self._preferredcodec == 'wav': |
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extension = 'wav' |
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more_opts += ['-f', 'wav'] |
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|
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prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups |
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new_path = prefix + sep + extension |
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|
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# If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly. |
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if new_path == path: |
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self._nopostoverwrites = True |
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|
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try: |
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if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)): |
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self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path) |
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else: |
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self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path) |
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self.run_ffmpeg(path, new_path, acodec, more_opts) |
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except: |
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etype,e,tb = sys.exc_info() |
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if isinstance(e, AudioConversionError): |
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msg = u'audio conversion failed: ' + e.msg |
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else: |
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msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') |
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raise PostProcessingError(msg) |
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|
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# Try to update the date time for extracted audio file. |
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if information.get('filetime') is not None: |
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try: |
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os.utime(encodeFilename(new_path), (time.time(), information['filetime'])) |
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except: |
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self._downloader.report_warning(u'Cannot update utime of audio file') |
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|
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information['filepath'] = new_path |
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return self._nopostoverwrites,information |
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|
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|
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class FFmpegVideoConvertor(FFmpegPostProcessor): |
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def __init__(self, downloader=None,preferedformat=None): |
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super(FFmpegVideoConvertor, self).__init__(downloader) |
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self._preferedformat=preferedformat |
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|
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def run(self, information): |
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path = information['filepath'] |
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prefix, sep, ext = path.rpartition(u'.') |
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outpath = prefix + sep + self._preferedformat |
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if information['ext'] == self._preferedformat: |
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self._downloader.to_screen(u'[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat)) |
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return True,information |
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self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) +outpath) |
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self.run_ffmpeg(path, outpath, []) |
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information['filepath'] = outpath |
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information['format'] = self._preferedformat |
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information['ext'] = self._preferedformat |
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return False,information |
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|
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|
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class FFmpegEmbedSubtitlePP(FFmpegPostProcessor): |
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# See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt |
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_lang_map = { |
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'aa': 'aar', |
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'ab': 'abk', |
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'ae': 'ave', |
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'af': 'afr', |
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'ak': 'aka', |
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'am': 'amh', |
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'an': 'arg', |
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'ar': 'ara', |
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'as': 'asm', |
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'av': 'ava', |
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'ay': 'aym', |
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'az': 'aze', |
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'ba': 'bak', |
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'be': 'bel', |
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'bg': 'bul', |
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'bh': 'bih', |
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'bi': 'bis', |
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'bm': 'bam', |
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'bn': 'ben', |
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'bo': 'bod', |
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'br': 'bre', |
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'bs': 'bos', |
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'ca': 'cat', |
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'ce': 'che', |
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'ch': 'cha', |
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'co': 'cos', |
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'cr': 'cre', |
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'cs': 'ces', |
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'cu': 'chu', |
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'cv': 'chv', |
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'cy': 'cym', |
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'da': 'dan', |
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'de': 'deu', |
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'dv': 'div', |
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'dz': 'dzo', |
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'ee': 'ewe', |
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'el': 'ell', |
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'en': 'eng', |
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'eo': 'epo', |
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'es': 'spa', |
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'et': 'est', |
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'eu': 'eus', |
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'fa': 'fas', |
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'ff': 'ful', |
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'fi': 'fin', |
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'fj': 'fij', |
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'fo': 'fao', |
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'fr': 'fra', |
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'fy': 'fry', |
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'ga': 'gle', |
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'gd': 'gla', |
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'gl': 'glg', |
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'gn': 'grn', |
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'gu': 'guj', |
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'gv': 'glv', |
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'ha': 'hau', |
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'he': 'heb', |
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'hi': 'hin', |
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'ho': 'hmo', |
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'hr': 'hrv', |
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'ht': 'hat', |
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'hu': 'hun', |
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'hy': 'hye', |
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'hz': 'her', |
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'ia': 'ina', |
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'id': 'ind', |
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'ie': 'ile', |
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'ig': 'ibo', |
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'ii': 'iii', |
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'ik': 'ipk', |
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'io': 'ido', |
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'is': 'isl', |
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'it': 'ita', |
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'iu': 'iku', |
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'ja': 'jpn', |
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'jv': 'jav', |
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'ka': 'kat', |
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'kg': 'kon', |
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'ki': 'kik', |
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'kj': 'kua', |
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'kk': 'kaz', |
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'kl': 'kal', |
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'km': 'khm', |
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'kn': 'kan', |
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'ko': 'kor', |
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'kr': 'kau', |
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'ks': 'kas', |
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'ku': 'kur', |
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'kv': 'kom', |
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'kw': 'cor', |
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'ky': 'kir', |
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'la': 'lat', |
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'lb': 'ltz', |
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'lg': 'lug', |
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'li': 'lim', |
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'ln': 'lin', |
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'lo': 'lao', |
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'lt': 'lit', |
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'lu': 'lub', |
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'lv': 'lav', |
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'mg': 'mlg', |
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'mh': 'mah', |
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'mi': 'mri', |
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'mk': 'mkd', |
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'ml': 'mal', |
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'mn': 'mon', |
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'mr': 'mar', |
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'ms': 'msa', |
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'mt': 'mlt', |
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'my': 'mya', |
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'na': 'nau', |
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'nb': 'nob', |
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'nd': 'nde', |
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'ne': 'nep', |
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'ng': 'ndo', |
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'nl': 'nld', |
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'nn': 'nno', |
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'no': 'nor', |
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'nr': 'nbl', |
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'nv': 'nav', |
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'ny': 'nya', |
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'oc': 'oci', |
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'oj': 'oji', |
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'om': 'orm', |
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'or': 'ori', |
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'os': 'oss', |
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'pa': 'pan', |
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'pi': 'pli', |
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'pl': 'pol', |
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'ps': 'pus', |
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'pt': 'por', |
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'qu': 'que', |
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'rm': 'roh', |
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'rn': 'run', |
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'ro': 'ron', |
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'ru': 'rus', |
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'rw': 'kin', |
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'sa': 'san', |
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'sc': 'srd', |
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'sd': 'snd', |
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'se': 'sme', |
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'sg': 'sag', |
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'si': 'sin', |
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'sk': 'slk', |
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'sl': 'slv', |
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'sm': 'smo', |
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'sn': 'sna', |
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'so': 'som', |
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'sq': 'sqi', |
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'sr': 'srp', |
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'ss': 'ssw', |
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'st': 'sot', |
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'su': 'sun', |
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'sv': 'swe', |
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'sw': 'swa', |
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'ta': 'tam', |
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'te': 'tel', |
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'tg': 'tgk', |
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'th': 'tha', |
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'ti': 'tir', |
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'tk': 'tuk', |
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'tl': 'tgl', |
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'tn': 'tsn', |
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'to': 'ton', |
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'tr': 'tur', |
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'ts': 'tso', |
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'tt': 'tat', |
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'tw': 'twi', |
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'ty': 'tah', |
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'ug': 'uig', |
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'uk': 'ukr', |
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'ur': 'urd', |
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'uz': 'uzb', |
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've': 'ven', |
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'vi': 'vie', |
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'vo': 'vol', |
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'wa': 'wln', |
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'wo': 'wol', |
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'xh': 'xho', |
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'yi': 'yid', |
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'yo': 'yor', |
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'za': 'zha', |
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'zh': 'zho', |
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'zu': 'zul', |
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} |
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|
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def __init__(self, downloader=None, subtitlesformat='srt'): |
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super(FFmpegEmbedSubtitlePP, self).__init__(downloader) |
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self._subformat = subtitlesformat |
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|
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@classmethod |
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def _conver_lang_code(cls, code): |
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"""Convert language code from ISO 639-1 to ISO 639-2/T""" |
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return cls._lang_map.get(code[:2]) |
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|
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def run(self, information): |
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if information['ext'] != u'mp4': |
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self._downloader.to_screen(u'[ffmpeg] Subtitles can only be embedded in mp4 files') |
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return True, information |
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if not information.get('subtitles'): |
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self._downloader.to_screen(u'[ffmpeg] There aren\'t any subtitles to embed') |
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return True, information |
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|
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sub_langs = [key for key in information['subtitles']] |
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filename = information['filepath'] |
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input_files = [filename] + [subtitles_filename(filename, lang, self._subformat) for lang in sub_langs] |
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|
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opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy'] |
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for (i, lang) in enumerate(sub_langs): |
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opts.extend(['-map', '%d:0' % (i+1), '-c:s:%d' % i, 'mov_text']) |
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lang_code = self._conver_lang_code(lang) |
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if lang_code is not None: |
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opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code]) |
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opts.extend(['-f', 'mp4']) |
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|
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temp_filename = filename + u'.temp' |
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self._downloader.to_screen(u'[ffmpeg] Embedding subtitles in \'%s\'' % filename) |
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self.run_ffmpeg_multiple_files(input_files, temp_filename, opts) |
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os.remove(encodeFilename(filename)) |
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os.rename(encodeFilename(temp_filename), encodeFilename(filename)) |
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|
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return True, information |
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|
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|
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class FFmpegMetadataPP(FFmpegPostProcessor): |
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def run(self, info): |
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metadata = {} |
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if info.get('title') is not None: |
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metadata['title'] = info['title'] |
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if info.get('upload_date') is not None: |
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metadata['date'] = info['upload_date'] |
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if info.get('uploader') is not None: |
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metadata['artist'] = info['uploader'] |
|||
elif info.get('uploader_id') is not None: |
|||
metadata['artist'] = info['uploader_id'] |
|||
|
|||
if not metadata: |
|||
self._downloader.to_screen(u'[ffmpeg] There isn\'t any metadata to add') |
|||
return True, info |
|||
|
|||
filename = info['filepath'] |
|||
temp_filename = prepend_extension(filename, 'temp') |
|||
|
|||
options = ['-c', 'copy'] |
|||
for (name, value) in metadata.items(): |
|||
options.extend(['-metadata', '%s=%s' % (name, value)]) |
|||
|
|||
self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename) |
|||
self.run_ffmpeg(filename, temp_filename, options) |
|||
os.remove(encodeFilename(filename)) |
|||
os.rename(encodeFilename(temp_filename), encodeFilename(filename)) |
|||
return True, info |
|||
|
|||
|
|||
class FFmpegMergerPP(FFmpegPostProcessor): |
|||
def run(self, info): |
|||
filename = info['filepath'] |
|||
args = ['-c', 'copy'] |
|||
self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args) |
|||
return True, info |
|||
|
|||
|
|||
class XAttrMetadataPP(PostProcessor): |
|||
|
|||
# |
|||
# More info about extended attributes for media: |
|||
# http://freedesktop.org/wiki/CommonExtendedAttributes/ |
|||
# http://www.freedesktop.org/wiki/PhreedomDraft/ |
|||
# http://dublincore.org/documents/usageguide/elements.shtml |
|||
# |
|||
# TODO: |
|||
# * capture youtube keywords and put them in 'user.dublincore.subject' (comma-separated) |
|||
# * figure out which xattrs can be used for 'duration', 'thumbnail', 'resolution' |
|||
# |
|||
|
|||
def run(self, info): |
|||
""" Set extended attributes on downloaded file (if xattr support is found). """ |
|||
|
|||
# This mess below finds the best xattr tool for the job and creates a |
|||
# "write_xattr" function. |
|||
try: |
|||
# try the pyxattr module... |
|||
import xattr |
|||
def write_xattr(path, key, value): |
|||
return xattr.setxattr(path, key, value) |
|||
|
|||
except ImportError: |
|||
|
|||
if os.name == 'posix': |
|||
def which(bin): |
|||
for dir in os.environ["PATH"].split(":"): |
|||
path = os.path.join(dir, bin) |
|||
if os.path.exists(path): |
|||
return path |
|||
|
|||
user_has_setfattr = which("setfattr") |
|||
user_has_xattr = which("xattr") |
|||
|
|||
if user_has_setfattr or user_has_xattr: |
|||
|
|||
def write_xattr(path, key, value): |
|||
import errno |
|||
potential_errors = { |
|||
# setfattr: /tmp/blah: Operation not supported |
|||
"Operation not supported": errno.EOPNOTSUPP, |
|||
# setfattr: ~/blah: No such file or directory |
|||
# xattr: No such file: ~/blah |
|||
"No such file": errno.ENOENT, |
|||
} |
|||
|
|||
if user_has_setfattr: |
|||
cmd = ['setfattr', '-n', key, '-v', value, path] |
|||
elif user_has_xattr: |
|||
cmd = ['xattr', '-w', key, value, path] |
|||
|
|||
try: |
|||
output = subprocess.check_output(cmd, stderr=subprocess.STDOUT) |
|||
except subprocess.CalledProcessError as e: |
|||
errorstr = e.output.strip().decode() |
|||
for potential_errorstr, potential_errno in potential_errors.items(): |
|||
if errorstr.find(potential_errorstr) > -1: |
|||
e = OSError(potential_errno, potential_errorstr) |
|||
e.__cause__ = None |
|||
raise e |
|||
raise # Reraise unhandled error |
|||
|
|||
else: |
|||
# On Unix, and can't find pyxattr, setfattr, or xattr. |
|||
if sys.platform.startswith('linux'): |
|||
self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'pyxattr' or 'xattr' modules, or the GNU 'attr' package (which contains the 'setfattr' tool).") |
|||
elif sys.platform == 'darwin': |
|||
self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'xattr' module, or the 'xattr' binary.") |
|||
else: |
|||
# Write xattrs to NTFS Alternate Data Streams: http://en.wikipedia.org/wiki/NTFS#Alternate_data_streams_.28ADS.29 |
|||
def write_xattr(path, key, value): |
|||
assert(key.find(":") < 0) |
|||
assert(path.find(":") < 0) |
|||
assert(os.path.exists(path)) |
|||
|
|||
ads_fn = path + ":" + key |
|||
with open(ads_fn, "w") as f: |
|||
f.write(value) |
|||
|
|||
# Write the metadata to the file's xattrs |
|||
self._downloader.to_screen('[metadata] Writing metadata to file\'s xattrs...') |
|||
|
|||
filename = info['filepath'] |
|||
|
|||
try: |
|||
xattr_mapping = { |
|||
'user.xdg.referrer.url': 'webpage_url', |
|||
# 'user.xdg.comment': 'description', |
|||
'user.dublincore.title': 'title', |
|||
'user.dublincore.date': 'upload_date', |
|||
'user.dublincore.description': 'description', |
|||
'user.dublincore.contributor': 'uploader', |
|||
'user.dublincore.format': 'format', |
|||
} |
|||
|
|||
for xattrname, infoname in xattr_mapping.items(): |
|||
|
|||
value = info.get(infoname) |
|||
|
|||
if value: |
|||
if infoname == "upload_date": |
|||
value = hyphenate_date(value) |
|||
|
|||
write_xattr(filename, xattrname, value) |
|||
|
|||
return True, info |
|||
|
|||
except OSError: |
|||
self._downloader.report_error("This filesystem doesn't support extended attributes. (You may have to enable them in your /etc/fstab)") |
|||
return False, info |
|||
|
|||
from .xattrpp import XAttrMetadataPP |
|||
|
|||
__all__ = [ |
|||
'FFmpegMergerPP', |
|||
'FFmpegMetadataPP', |
|||
'FFmpegVideoConvertor', |
|||
'FFmpegExtractAudioPP', |
|||
'FFmpegEmbedSubtitlePP', |
|||
'XAttrMetadataPP', |
|||
] |
|||
@ -0,0 +1,49 @@ |
|||
from ..utils import PostProcessingError |
|||
|
|||
|
|||
class PostProcessor(object): |
|||
"""Post Processor class. |
|||
|
|||
PostProcessor objects can be added to downloaders with their |
|||
add_post_processor() method. When the downloader has finished a |
|||
successful download, it will take its internal chain of PostProcessors |
|||
and start calling the run() method on each one of them, first with |
|||
an initial argument and then with the returned value of the previous |
|||
PostProcessor. |
|||
|
|||
The chain will be stopped if one of them ever returns None or the end |
|||
of the chain is reached. |
|||
|
|||
PostProcessor objects follow a "mutual registration" process similar |
|||
to InfoExtractor objects. |
|||
""" |
|||
|
|||
_downloader = None |
|||
|
|||
def __init__(self, downloader=None): |
|||
self._downloader = downloader |
|||
|
|||
def set_downloader(self, downloader): |
|||
"""Sets the downloader for this PP.""" |
|||
self._downloader = downloader |
|||
|
|||
def run(self, information): |
|||
"""Run the PostProcessor. |
|||
|
|||
The "information" argument is a dictionary like the ones |
|||
composed by InfoExtractors. The only difference is that this |
|||
one has an extra field called "filepath" that points to the |
|||
downloaded file. |
|||
|
|||
This method returns a tuple, the first element of which describes |
|||
whether the original file should be kept (i.e. not deleted - None for |
|||
no preference), and the second of which is the updated information. |
|||
|
|||
In addition, this method may raise a PostProcessingError |
|||
exception if post processing fails. |
|||
""" |
|||
return None, information # by default, keep file and do nothing |
|||
|
|||
|
|||
class AudioConversionError(PostProcessingError): |
|||
pass |
|||
@ -0,0 +1,481 @@ |
|||
import os |
|||
import subprocess |
|||
import sys |
|||
import time |
|||
|
|||
|
|||
from .common import AudioConversionError, PostProcessor |
|||
|
|||
from ..utils import ( |
|||
compat_subprocess_get_DEVNULL, |
|||
encodeFilename, |
|||
PostProcessingError, |
|||
prepend_extension, |
|||
shell_quote, |
|||
subtitles_filename, |
|||
) |
|||
|
|||
|
|||
|
|||
class FFmpegPostProcessorError(PostProcessingError): |
|||
pass |
|||
|
|||
class FFmpegPostProcessor(PostProcessor): |
|||
def __init__(self,downloader=None): |
|||
PostProcessor.__init__(self, downloader) |
|||
self._exes = self.detect_executables() |
|||
|
|||
@staticmethod |
|||
def detect_executables(): |
|||
def executable(exe): |
|||
try: |
|||
subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() |
|||
except OSError: |
|||
return False |
|||
return exe |
|||
programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe'] |
|||
return dict((program, executable(program)) for program in programs) |
|||
|
|||
def run_ffmpeg_multiple_files(self, input_paths, out_path, opts): |
|||
if not self._exes['ffmpeg'] and not self._exes['avconv']: |
|||
raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.') |
|||
|
|||
files_cmd = [] |
|||
for path in input_paths: |
|||
files_cmd.extend(['-i', encodeFilename(path, True)]) |
|||
cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd |
|||
+ opts + |
|||
[encodeFilename(self._ffmpeg_filename_argument(out_path), True)]) |
|||
|
|||
if self._downloader.params.get('verbose', False): |
|||
self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd)) |
|||
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
|||
stdout,stderr = p.communicate() |
|||
if p.returncode != 0: |
|||
stderr = stderr.decode('utf-8', 'replace') |
|||
msg = stderr.strip().split('\n')[-1] |
|||
raise FFmpegPostProcessorError(msg) |
|||
|
|||
def run_ffmpeg(self, path, out_path, opts): |
|||
self.run_ffmpeg_multiple_files([path], out_path, opts) |
|||
|
|||
def _ffmpeg_filename_argument(self, fn): |
|||
# ffmpeg broke --, see https://ffmpeg.org/trac/ffmpeg/ticket/2127 for details |
|||
if fn.startswith(u'-'): |
|||
return u'./' + fn |
|||
return fn |
|||
|
|||
|
|||
class FFmpegExtractAudioPP(FFmpegPostProcessor): |
|||
def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False): |
|||
FFmpegPostProcessor.__init__(self, downloader) |
|||
if preferredcodec is None: |
|||
preferredcodec = 'best' |
|||
self._preferredcodec = preferredcodec |
|||
self._preferredquality = preferredquality |
|||
self._nopostoverwrites = nopostoverwrites |
|||
|
|||
def get_audio_codec(self, path): |
|||
if not self._exes['ffprobe'] and not self._exes['avprobe']: |
|||
raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.') |
|||
try: |
|||
cmd = [ |
|||
self._exes['avprobe'] or self._exes['ffprobe'], |
|||
'-show_streams', |
|||
encodeFilename(self._ffmpeg_filename_argument(path), True)] |
|||
handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE) |
|||
output = handle.communicate()[0] |
|||
if handle.wait() != 0: |
|||
return None |
|||
except (IOError, OSError): |
|||
return None |
|||
audio_codec = None |
|||
for line in output.decode('ascii', 'ignore').split('\n'): |
|||
if line.startswith('codec_name='): |
|||
audio_codec = line.split('=')[1].strip() |
|||
elif line.strip() == 'codec_type=audio' and audio_codec is not None: |
|||
return audio_codec |
|||
return None |
|||
|
|||
def run_ffmpeg(self, path, out_path, codec, more_opts): |
|||
if not self._exes['ffmpeg'] and not self._exes['avconv']: |
|||
raise AudioConversionError('ffmpeg or avconv not found. Please install one.') |
|||
if codec is None: |
|||
acodec_opts = [] |
|||
else: |
|||
acodec_opts = ['-acodec', codec] |
|||
opts = ['-vn'] + acodec_opts + more_opts |
|||
try: |
|||
FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts) |
|||
except FFmpegPostProcessorError as err: |
|||
raise AudioConversionError(err.msg) |
|||
|
|||
def run(self, information): |
|||
path = information['filepath'] |
|||
|
|||
filecodec = self.get_audio_codec(path) |
|||
if filecodec is None: |
|||
raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe') |
|||
|
|||
more_opts = [] |
|||
if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'): |
|||
if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']: |
|||
# Lossless, but in another container |
|||
acodec = 'copy' |
|||
extension = 'm4a' |
|||
more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] |
|||
elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']: |
|||
# Lossless if possible |
|||
acodec = 'copy' |
|||
extension = filecodec |
|||
if filecodec == 'aac': |
|||
more_opts = ['-f', 'adts'] |
|||
if filecodec == 'vorbis': |
|||
extension = 'ogg' |
|||
else: |
|||
# MP3 otherwise. |
|||
acodec = 'libmp3lame' |
|||
extension = 'mp3' |
|||
more_opts = [] |
|||
if self._preferredquality is not None: |
|||
if int(self._preferredquality) < 10: |
|||
more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality] |
|||
else: |
|||
more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k'] |
|||
else: |
|||
# We convert the audio (lossy) |
|||
acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec] |
|||
extension = self._preferredcodec |
|||
more_opts = [] |
|||
if self._preferredquality is not None: |
|||
# The opus codec doesn't support the -aq option |
|||
if int(self._preferredquality) < 10 and extension != 'opus': |
|||
more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality] |
|||
else: |
|||
more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k'] |
|||
if self._preferredcodec == 'aac': |
|||
more_opts += ['-f', 'adts'] |
|||
if self._preferredcodec == 'm4a': |
|||
more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc'] |
|||
if self._preferredcodec == 'vorbis': |
|||
extension = 'ogg' |
|||
if self._preferredcodec == 'wav': |
|||
extension = 'wav' |
|||
more_opts += ['-f', 'wav'] |
|||
|
|||
prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups |
|||
new_path = prefix + sep + extension |
|||
|
|||
# If we download foo.mp3 and convert it to... foo.mp3, then don't delete foo.mp3, silly. |
|||
if new_path == path: |
|||
self._nopostoverwrites = True |
|||
|
|||
try: |
|||
if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)): |
|||
self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path) |
|||
else: |
|||
self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path) |
|||
self.run_ffmpeg(path, new_path, acodec, more_opts) |
|||
except: |
|||
etype,e,tb = sys.exc_info() |
|||
if isinstance(e, AudioConversionError): |
|||
msg = u'audio conversion failed: ' + e.msg |
|||
else: |
|||
msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') |
|||
raise PostProcessingError(msg) |
|||
|
|||
# Try to update the date time for extracted audio file. |
|||
if information.get('filetime') is not None: |
|||
try: |
|||
os.utime(encodeFilename(new_path), (time.time(), information['filetime'])) |
|||
except: |
|||
self._downloader.report_warning(u'Cannot update utime of audio file') |
|||
|
|||
information['filepath'] = new_path |
|||
return self._nopostoverwrites,information |
|||
|
|||
|
|||
class FFmpegVideoConvertor(FFmpegPostProcessor): |
|||
def __init__(self, downloader=None,preferedformat=None): |
|||
super(FFmpegVideoConvertor, self).__init__(downloader) |
|||
self._preferedformat=preferedformat |
|||
|
|||
def run(self, information): |
|||
path = information['filepath'] |
|||
prefix, sep, ext = path.rpartition(u'.') |
|||
outpath = prefix + sep + self._preferedformat |
|||
if information['ext'] == self._preferedformat: |
|||
self._downloader.to_screen(u'[ffmpeg] Not converting video file %s - already is in target format %s' % (path, self._preferedformat)) |
|||
return True,information |
|||
self._downloader.to_screen(u'['+'ffmpeg'+'] Converting video from %s to %s, Destination: ' % (information['ext'], self._preferedformat) +outpath) |
|||
self.run_ffmpeg(path, outpath, []) |
|||
information['filepath'] = outpath |
|||
information['format'] = self._preferedformat |
|||
information['ext'] = self._preferedformat |
|||
return False,information |
|||
|
|||
|
|||
class FFmpegEmbedSubtitlePP(FFmpegPostProcessor): |
|||
# See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt |
|||
_lang_map = { |
|||
'aa': 'aar', |
|||
'ab': 'abk', |
|||
'ae': 'ave', |
|||
'af': 'afr', |
|||
'ak': 'aka', |
|||
'am': 'amh', |
|||
'an': 'arg', |
|||
'ar': 'ara', |
|||
'as': 'asm', |
|||
'av': 'ava', |
|||
'ay': 'aym', |
|||
'az': 'aze', |
|||
'ba': 'bak', |
|||
'be': 'bel', |
|||
'bg': 'bul', |
|||
'bh': 'bih', |
|||
'bi': 'bis', |
|||
'bm': 'bam', |
|||
'bn': 'ben', |
|||
'bo': 'bod', |
|||
'br': 'bre', |
|||
'bs': 'bos', |
|||
'ca': 'cat', |
|||
'ce': 'che', |
|||
'ch': 'cha', |
|||
'co': 'cos', |
|||
'cr': 'cre', |
|||
'cs': 'ces', |
|||
'cu': 'chu', |
|||
'cv': 'chv', |
|||
'cy': 'cym', |
|||
'da': 'dan', |
|||
'de': 'deu', |
|||
'dv': 'div', |
|||
'dz': 'dzo', |
|||
'ee': 'ewe', |
|||
'el': 'ell', |
|||
'en': 'eng', |
|||
'eo': 'epo', |
|||
'es': 'spa', |
|||
'et': 'est', |
|||
'eu': 'eus', |
|||
'fa': 'fas', |
|||
'ff': 'ful', |
|||
'fi': 'fin', |
|||
'fj': 'fij', |
|||
'fo': 'fao', |
|||
'fr': 'fra', |
|||
'fy': 'fry', |
|||
'ga': 'gle', |
|||
'gd': 'gla', |
|||
'gl': 'glg', |
|||
'gn': 'grn', |
|||
'gu': 'guj', |
|||
'gv': 'glv', |
|||
'ha': 'hau', |
|||
'he': 'heb', |
|||
'hi': 'hin', |
|||
'ho': 'hmo', |
|||
'hr': 'hrv', |
|||
'ht': 'hat', |
|||
'hu': 'hun', |
|||
'hy': 'hye', |
|||
'hz': 'her', |
|||
'ia': 'ina', |
|||
'id': 'ind', |
|||
'ie': 'ile', |
|||
'ig': 'ibo', |
|||
'ii': 'iii', |
|||
'ik': 'ipk', |
|||
'io': 'ido', |
|||
'is': 'isl', |
|||
'it': 'ita', |
|||
'iu': 'iku', |
|||
'ja': 'jpn', |
|||
'jv': 'jav', |
|||
'ka': 'kat', |
|||
'kg': 'kon', |
|||
'ki': 'kik', |
|||
'kj': 'kua', |
|||
'kk': 'kaz', |
|||
'kl': 'kal', |
|||
'km': 'khm', |
|||
'kn': 'kan', |
|||
'ko': 'kor', |
|||
'kr': 'kau', |
|||
'ks': 'kas', |
|||
'ku': 'kur', |
|||
'kv': 'kom', |
|||
'kw': 'cor', |
|||
'ky': 'kir', |
|||
'la': 'lat', |
|||
'lb': 'ltz', |
|||
'lg': 'lug', |
|||
'li': 'lim', |
|||
'ln': 'lin', |
|||
'lo': 'lao', |
|||
'lt': 'lit', |
|||
'lu': 'lub', |
|||
'lv': 'lav', |
|||
'mg': 'mlg', |
|||
'mh': 'mah', |
|||
'mi': 'mri', |
|||
'mk': 'mkd', |
|||
'ml': 'mal', |
|||
'mn': 'mon', |
|||
'mr': 'mar', |
|||
'ms': 'msa', |
|||
'mt': 'mlt', |
|||
'my': 'mya', |
|||
'na': 'nau', |
|||
'nb': 'nob', |
|||
'nd': 'nde', |
|||
'ne': 'nep', |
|||
'ng': 'ndo', |
|||
'nl': 'nld', |
|||
'nn': 'nno', |
|||
'no': 'nor', |
|||
'nr': 'nbl', |
|||
'nv': 'nav', |
|||
'ny': 'nya', |
|||
'oc': 'oci', |
|||
'oj': 'oji', |
|||
'om': 'orm', |
|||
'or': 'ori', |
|||
'os': 'oss', |
|||
'pa': 'pan', |
|||
'pi': 'pli', |
|||
'pl': 'pol', |
|||
'ps': 'pus', |
|||
'pt': 'por', |
|||
'qu': 'que', |
|||
'rm': 'roh', |
|||
'rn': 'run', |
|||
'ro': 'ron', |
|||
'ru': 'rus', |
|||
'rw': 'kin', |
|||
'sa': 'san', |
|||
'sc': 'srd', |
|||
'sd': 'snd', |
|||
'se': 'sme', |
|||
'sg': 'sag', |
|||
'si': 'sin', |
|||
'sk': 'slk', |
|||
'sl': 'slv', |
|||
'sm': 'smo', |
|||
'sn': 'sna', |
|||
'so': 'som', |
|||
'sq': 'sqi', |
|||
'sr': 'srp', |
|||
'ss': 'ssw', |
|||
'st': 'sot', |
|||
'su': 'sun', |
|||
'sv': 'swe', |
|||
'sw': 'swa', |
|||
'ta': 'tam', |
|||
'te': 'tel', |
|||
'tg': 'tgk', |
|||
'th': 'tha', |
|||
'ti': 'tir', |
|||
'tk': 'tuk', |
|||
'tl': 'tgl', |
|||
'tn': 'tsn', |
|||
'to': 'ton', |
|||
'tr': 'tur', |
|||
'ts': 'tso', |
|||
'tt': 'tat', |
|||
'tw': 'twi', |
|||
'ty': 'tah', |
|||
'ug': 'uig', |
|||
'uk': 'ukr', |
|||
'ur': 'urd', |
|||
'uz': 'uzb', |
|||
've': 'ven', |
|||
'vi': 'vie', |
|||
'vo': 'vol', |
|||
'wa': 'wln', |
|||
'wo': 'wol', |
|||
'xh': 'xho', |
|||
'yi': 'yid', |
|||
'yo': 'yor', |
|||
'za': 'zha', |
|||
'zh': 'zho', |
|||
'zu': 'zul', |
|||
} |
|||
|
|||
def __init__(self, downloader=None, subtitlesformat='srt'): |
|||
super(FFmpegEmbedSubtitlePP, self).__init__(downloader) |
|||
self._subformat = subtitlesformat |
|||
|
|||
@classmethod |
|||
def _conver_lang_code(cls, code): |
|||
"""Convert language code from ISO 639-1 to ISO 639-2/T""" |
|||
return cls._lang_map.get(code[:2]) |
|||
|
|||
def run(self, information): |
|||
if information['ext'] != u'mp4': |
|||
self._downloader.to_screen(u'[ffmpeg] Subtitles can only be embedded in mp4 files') |
|||
return True, information |
|||
if not information.get('subtitles'): |
|||
self._downloader.to_screen(u'[ffmpeg] There aren\'t any subtitles to embed') |
|||
return True, information |
|||
|
|||
sub_langs = [key for key in information['subtitles']] |
|||
filename = information['filepath'] |
|||
input_files = [filename] + [subtitles_filename(filename, lang, self._subformat) for lang in sub_langs] |
|||
|
|||
opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy'] |
|||
for (i, lang) in enumerate(sub_langs): |
|||
opts.extend(['-map', '%d:0' % (i+1), '-c:s:%d' % i, 'mov_text']) |
|||
lang_code = self._conver_lang_code(lang) |
|||
if lang_code is not None: |
|||
opts.extend(['-metadata:s:s:%d' % i, 'language=%s' % lang_code]) |
|||
opts.extend(['-f', 'mp4']) |
|||
|
|||
temp_filename = filename + u'.temp' |
|||
self._downloader.to_screen(u'[ffmpeg] Embedding subtitles in \'%s\'' % filename) |
|||
self.run_ffmpeg_multiple_files(input_files, temp_filename, opts) |
|||
os.remove(encodeFilename(filename)) |
|||
os.rename(encodeFilename(temp_filename), encodeFilename(filename)) |
|||
|
|||
return True, information |
|||
|
|||
|
|||
class FFmpegMetadataPP(FFmpegPostProcessor): |
|||
def run(self, info): |
|||
metadata = {} |
|||
if info.get('title') is not None: |
|||
metadata['title'] = info['title'] |
|||
if info.get('upload_date') is not None: |
|||
metadata['date'] = info['upload_date'] |
|||
if info.get('uploader') is not None: |
|||
metadata['artist'] = info['uploader'] |
|||
elif info.get('uploader_id') is not None: |
|||
metadata['artist'] = info['uploader_id'] |
|||
|
|||
if not metadata: |
|||
self._downloader.to_screen(u'[ffmpeg] There isn\'t any metadata to add') |
|||
return True, info |
|||
|
|||
filename = info['filepath'] |
|||
temp_filename = prepend_extension(filename, 'temp') |
|||
|
|||
options = ['-c', 'copy'] |
|||
for (name, value) in metadata.items(): |
|||
options.extend(['-metadata', '%s=%s' % (name, value)]) |
|||
|
|||
self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename) |
|||
self.run_ffmpeg(filename, temp_filename, options) |
|||
os.remove(encodeFilename(filename)) |
|||
os.rename(encodeFilename(temp_filename), encodeFilename(filename)) |
|||
return True, info |
|||
|
|||
|
|||
class FFmpegMergerPP(FFmpegPostProcessor): |
|||
def run(self, info): |
|||
filename = info['filepath'] |
|||
args = ['-c', 'copy'] |
|||
self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args) |
|||
return True, info |
|||
|
|||
@ -0,0 +1,123 @@ |
|||
import os |
|||
import subprocess |
|||
import sys |
|||
|
|||
from .common import PostProcessor |
|||
from ..utils import ( |
|||
hyphenate_date, |
|||
) |
|||
|
|||
|
|||
class XAttrMetadataPP(PostProcessor): |
|||
|
|||
# |
|||
# More info about extended attributes for media: |
|||
# http://freedesktop.org/wiki/CommonExtendedAttributes/ |
|||
# http://www.freedesktop.org/wiki/PhreedomDraft/ |
|||
# http://dublincore.org/documents/usageguide/elements.shtml |
|||
# |
|||
# TODO: |
|||
# * capture youtube keywords and put them in 'user.dublincore.subject' (comma-separated) |
|||
# * figure out which xattrs can be used for 'duration', 'thumbnail', 'resolution' |
|||
# |
|||
|
|||
def run(self, info): |
|||
""" Set extended attributes on downloaded file (if xattr support is found). """ |
|||
|
|||
# This mess below finds the best xattr tool for the job and creates a |
|||
# "write_xattr" function. |
|||
try: |
|||
# try the pyxattr module... |
|||
import xattr |
|||
def write_xattr(path, key, value): |
|||
return xattr.setxattr(path, key, value) |
|||
|
|||
except ImportError: |
|||
|
|||
if os.name == 'posix': |
|||
def which(bin): |
|||
for dir in os.environ["PATH"].split(":"): |
|||
path = os.path.join(dir, bin) |
|||
if os.path.exists(path): |
|||
return path |
|||
|
|||
user_has_setfattr = which("setfattr") |
|||
user_has_xattr = which("xattr") |
|||
|
|||
if user_has_setfattr or user_has_xattr: |
|||
|
|||
def write_xattr(path, key, value): |
|||
import errno |
|||
potential_errors = { |
|||
# setfattr: /tmp/blah: Operation not supported |
|||
"Operation not supported": errno.EOPNOTSUPP, |
|||
# setfattr: ~/blah: No such file or directory |
|||
# xattr: No such file: ~/blah |
|||
"No such file": errno.ENOENT, |
|||
} |
|||
|
|||
if user_has_setfattr: |
|||
cmd = ['setfattr', '-n', key, '-v', value, path] |
|||
elif user_has_xattr: |
|||
cmd = ['xattr', '-w', key, value, path] |
|||
|
|||
try: |
|||
subprocess.check_output(cmd, stderr=subprocess.STDOUT) |
|||
except subprocess.CalledProcessError as e: |
|||
errorstr = e.output.strip().decode() |
|||
for potential_errorstr, potential_errno in potential_errors.items(): |
|||
if errorstr.find(potential_errorstr) > -1: |
|||
e = OSError(potential_errno, potential_errorstr) |
|||
e.__cause__ = None |
|||
raise e |
|||
raise # Reraise unhandled error |
|||
|
|||
else: |
|||
# On Unix, and can't find pyxattr, setfattr, or xattr. |
|||
if sys.platform.startswith('linux'): |
|||
self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'pyxattr' or 'xattr' modules, or the GNU 'attr' package (which contains the 'setfattr' tool).") |
|||
elif sys.platform == 'darwin': |
|||
self._downloader.report_error("Couldn't find a tool to set the xattrs. Install either the python 'xattr' module, or the 'xattr' binary.") |
|||
else: |
|||
# Write xattrs to NTFS Alternate Data Streams: http://en.wikipedia.org/wiki/NTFS#Alternate_data_streams_.28ADS.29 |
|||
def write_xattr(path, key, value): |
|||
assert(key.find(":") < 0) |
|||
assert(path.find(":") < 0) |
|||
assert(os.path.exists(path)) |
|||
|
|||
ads_fn = path + ":" + key |
|||
with open(ads_fn, "w") as f: |
|||
f.write(value) |
|||
|
|||
# Write the metadata to the file's xattrs |
|||
self._downloader.to_screen('[metadata] Writing metadata to file\'s xattrs...') |
|||
|
|||
filename = info['filepath'] |
|||
|
|||
try: |
|||
xattr_mapping = { |
|||
'user.xdg.referrer.url': 'webpage_url', |
|||
# 'user.xdg.comment': 'description', |
|||
'user.dublincore.title': 'title', |
|||
'user.dublincore.date': 'upload_date', |
|||
'user.dublincore.description': 'description', |
|||
'user.dublincore.contributor': 'uploader', |
|||
'user.dublincore.format': 'format', |
|||
} |
|||
|
|||
for xattrname, infoname in xattr_mapping.items(): |
|||
|
|||
value = info.get(infoname) |
|||
|
|||
if value: |
|||
if infoname == "upload_date": |
|||
value = hyphenate_date(value) |
|||
|
|||
write_xattr(filename, xattrname, value) |
|||
|
|||
return True, info |
|||
|
|||
except OSError: |
|||
self._downloader.report_error("This filesystem doesn't support extended attributes. (You may have to enable them in your /etc/fstab)") |
|||
return False, info |
|||
|
|||
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